Visible light-induced hydrogen generation using colloidal (ZnS)0.4(AgInS2)0.6 nanocrystals capped by S2− ions

Abstract

(ZnS)0.4(AgInS2)0.6 nanocrystals (NCs) capped by S2− ions exhibit interesting electronic properties, absorbing visible light along with a suitable band alignment as well as properties such as high surface area providing active reaction sites for photocatalytic H2 evolution. A high activity of 5.0 mmol g−1 h−1 is achieved using non-toxic (ZnS)0.4(AgInS2)0.6 NCs as photocatalysts without the need for a noble metal co-catalyst.